2017A&A...608A.129T


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.19CEST18:31:57

2017A&A...608A.129T - Astronomy and Astrophysics, volume 608A, 129-129 (2017/12-1)

The EBLM Project. IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot Jupiters.

TRIAUD A.H.M.J., MARTIN D.V., SEGRANSAN D., SMALLEY B., MAXTED P.F.L., ANDERSON D.R., BOUCHY F., COLLIER CAMERON A., FAEDI F., GOMEZ MAQUEO CHEW Y., HEBB L., HELLIER C., MARMIER M., PEPE F., POLLACCO D., QUELOZ D., UDRY S. and WEST R.

Abstract (from CDS):

We present 2271 radial velocity measurements taken on 118 single-line binary stars, taken over eight years with the CORALIE spectrograph. The binaries consist of F/G/K primaries and M dwarf secondaries. They were initially discovered photometrically by the WASP planet survey, as their shallow eclipses mimic a hot Jupiter transit. The observations we present permit a precise characterisation of the binary orbital elements and mass function. With modelling of the primary star, this mass function is converted to a mass of the secondary star. In the future, this spectroscopic work will be combined with precise photometric eclipses to draw an empirical mass/radius relation for the bottom of the mass sequence. This has applications in both stellar astrophysics and the growing number of exoplanet surveys around M dwarfs. In particular, we have discovered 34 systems with a secondary mass below 0.2M, and so we will ultimately double the number of known very low-mass stars with well-characterised masses and radii. The quality of our data combined with the amplitude of the Doppler variations mean that we are able to detect eccentricities as small as 0.001 and orbital periods to sub-second precision. Our sample can revisit some earlier work on the tidal evolution of close binaries, extending it to low mass ratios. We find some exceptional binary systems that are eccentric at orbital periods below three days, while our longest circular orbit has a period of 10.4 days. Amongst our systems, we note one remarkable architecture in J1146-42 that boasts three stars within one astronomical unit. By collating the EBLM binaries with published WASP planets and brown dwarfs, we derive a mass spectrum with twice the resolution of previous work. We compare the WASP/EBLM sample of tightly bound orbits with work in the literature on more distant companions up to 10 AU. We note that the brown dwarf desert appears wider, as it carves into the planetary domain for our short-period orbits. This would mean that a significantly reduced abundance of planets begins at ∼3MJup, well before the deuterium-burning limit. This may shed light on the formation and migration history of massive gas giants.

Abstract Copyright: © ESO, 2017

Journal keyword(s): binaries: eclipsing - techniques: photometric - techniques: radial velocities - brown dwarfs - stars: statistics - stars: luminosity function, mass function - stars: luminosity function, mass function

Simbad objects: 123

goto Full paper

goto View the reference in ADS

Number of rows : 123

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 TYC 4-331-1 EB? 00 08 57.9774210431 +02 56 42.033328282   10.34 10.05     ~ 5 1
2 EBLM J0017-38 Al* 00 17 48.3522184873 -38 06 38.930520795           ~ 1 0
3 BD-16 52 PM* 00 21 00.7729606479 -16 07 28.610498985   10.49 9.80     G5 1 0
4 TYC 7528-481-1 SB* 00 27 16.5234908765 -41 34 17.684880654   12.53 11.76     ~ 2 0
5 UCAC2 1664956 * 00 35 40.4456336962 -69 48 52.390943857   12.59 12.02 11.98 11.39 ~ 2 0
6 TYC 11-1042-1 PM* 00 40 01.4991491117 +01 05 40.378395422   12.00 11.39     ~ 3 0
7 BD-18 113 PM* 00 42 34.2207955147 -17 17 53.212701565   11.62 11.00     ~ 1 0
8 TYC 8848-560-1 * 00 48 21.4794696958 -66 09 36.977026159   12.054 11.555     ~ 2 0
9 NGC 188 OpC 00 48 26 +85 15.3           ~ 817 0
10 TYC 5850-383-1 * 00 57 58.9514791769 -19 49 47.467667344   12.44 11.65     ~ 1 0
11 TYC 7533-1169-1 SB* 01 04 19.1307700208 -38 18 30.695070677   11.57 11.25     ~ 4 0
12 EBLM J0109-67 Al* 01 09 12.9499627035 -67 55 08.248580649           ~ 1 0
13 HD 14326 SB* 02 18 13.2449489109 -31 05 17.389136788   10.510 9.914 9.57 9.338 G0V 11 0
14 TYC 45-1252-1 * 02 28 08.8743431772 +05 35 47.770324175   10.63 10.23     ~ 2 0
15 BD-20 499 * 02 39 29.2866681366 -20 02 23.989886417   11.34 10.63     ~ 1 0
16 HD 17577 PM* 02 47 20.5053167397 -51 27 10.397094794   10.08 9.55     F5V 6 0
17 HD 19827 * 03 10 22.6271689830 -31 07 35.786234717   9.93 9.33     G0V 6 0
18 TYC 6439-1132-1 * 03 15 26.5289069921 -24 15 45.521964288   11.98 11.32     ~ 1 0
19 EBLM J0326-09 Al* 03 26 45.0195483068 -09 20 31.667608226           ~ 1 0
20 TYC 67-354-1 * 03 39 09.6380723358 +03 05 37.669190098   11.73 11.38     ~ 3 0
21 BD-07 690 * 03 51 00.5377037980 -07 05 55.024356933   11.19 10.77     ~ 1 0
22 TYC 72-1041-1 * 03 53 08.9489738055 +05 36 33.157553668   11.70 11.17     ~ 3 1
23 BD-17 751 * 03 53 54.5221849698 -16 57 15.361482875   11.16 10.52     ~ 3 0
24 EBLM J0400-51 Al* 04 00 56.8899124318 -51 07 27.452404091           ~ 1 0
25 CD-46 1408 SB* 04 25 31.7082962245 -46 13 07.726981984   11.504 10.896     ~ 4 0
26 TYC 7041-214-1 * 04 32 58.7937 -33 29 47.913   11.602 11.135     ~ 2 0
27 TYC 8079-909-1 * 04 40 14.5873052382 -48 17 52.676951791   12.058 11.521     ~ 2 0
28 TYC 4747-1130-1 * 04 43 01.7710715781 -06 25 50.740471875   11.95 11.60     ~ 1 0
29 EBLM J0454-09 Al* 04 54 11.2359381255 -09 29 53.378897742           ~ 1 0
30 HD 272695 * 05 00 32.8612033167 -46 11 21.308988441   12.69 12.03     G0 4 0
31 TYC 7587-505-1 * 05 02 38.5865075473 -38 43 31.054420562   12.58 12.06     ~ 1 0
32 TYC 5323-1283-1 * 05 04 34.9318050779 -09 13 29.126760019   12.40 11.77     ~ 1 0
33 CD-39 1898 * 05 18 46.4768591918 -39 03 16.350341287   10.624 10.190     ~ 3 0
34 EBLM J0520-06 Al* 05 20 59.4756619320 -06 42 16.594115209           ~ 1 0
35 TYC 8522-455-1 * 05 25 24.7158379045 -55 01 11.643751659   11.52 11.07     ~ 1 0
36 EBLM J0526+04 Al* 05 26 04.8492080793 +04 51 35.407592681           ~ 1 0
37 TYC 7063-637-1 * 05 26 39.0713652966 -34 36 59.305692470   11.715 11.205     ~ 3 0
38 TYC 5921-745-1 * 05 40 43.5839013853 -17 32 44.813697163   12.19 11.31     ~ 2 0
39 TYC 8527-329-1 SB* 05 43 51.4682331251 -57 09 48.605218819   12.45 11.67     ~ 6 0
40 EBLM J0546-18 Al* 05 46 04.8072332816 -18 17 54.572549597           ~ 1 0
41 TOI 1338 * 06 08 31.9679092936 -59 32 28.080175325   12.537 11.975     ~ 6 0
42 TYC 8521-144-1 * 06 10 53.6168074255 -52 53 46.570149935   11.55 11.13     ~ 1 0
43 TYC 8102-960-1 * 06 21 53.5343232493 -46 13 10.076628983   12.83 11.97     ~ 1 0
44 TYC 8114-1646-1 * 06 21 56.6454349636 -50 55 32.441737999   12.27 11.94     ~ 2 0
45 TYC 6514-1296-1 * 06 23 11.4323921496 -27 43 44.904952305   12.25 11.65     ~ 2 0
46 EBLM J0625-43 Al* 06 25 16.0667589037 -43 47 11.891930007           ~ 1 0
47 TYC 9177-541-1 * 06 27 31.3842913129 -67 46 18.821308086   11.93 11.52     ~ 1 0
48 EBLM J0627-59 Al* 06 27 47.5722039551 -59 12 56.796781493           ~ 1 0
49 TYC 8906-294-1 * 06 29 14.1571294829 -67 25 11.368226388   12.27 12.39     ~ 1 0
50 CD-60 1544 * 06 42 03.3330076968 -60 40 13.006662287   10.60 10.11     ~ 1 0
51 CD-60 1562 * 06 45 15.7919037412 -61 05 29.439384667   10.59 10.09     ~ 1 0
52 TYC 6529-2778-1 * 06 45 37.9311455382 -26 42 42.366216807   12.82 12.49     ~ 1 0
53 HD 49816 * 06 49 06.0080554711 -27 20 58.402831264   10.57 10.09     F6V 4 0
54 TYC 7096-222-1 EB* 06 50 29.0835437601 -34 36 17.745115341   10.72 10.28     Am+M 2 1
55 TYC 8908-677-1 * 06 59 07.7857742307 -61 50 24.238296565   12.43 11.36     ~ 2 0
56 TYC 7089-2061-1 * 07 00 42.3726181607 -30 43 08.896692197   12.51 11.94     ~ 1 0
57 EBLM J0709-52 Al* 07 09 15.3012807918 -52 55 17.700961381           ~ 1 0
58 EBLM J0801+02 Al* 08 01 18.0793729622 +02 34 09.103740632           ~ 1 0
59 NGC 2682 OpC 08 51 18 +11 48.0           ~ 2054 0
60 EBLM J0851+05 Al* 08 51 54.0013682472 +05 42 30.690714848           ~ 1 0
61 BD+05 2082 * 08 55 27.4883525943 +04 50 04.755159949   9.60 9.17     F2 3 0
62 TYC 7167-584-1 SB* 09 41 16.7628043740 -31 49 10.301845015   11.62 11.08     ~ 2 0
63 HD 85004 * 09 48 49.4564685307 -08 29 36.427458149   9.74 9.31     F0V 9 0
64 TYC 6604-547-1 * 09 54 52.8928837986 -23 19 55.740978944   11.14 10.71     ~ 5 0
65 CD-44 5997 * 09 54 58.6861072676 -45 17 26.185904792   10.25 9.82     F2 2 0
66 EBLM J0955-39 Al* 09 55 18.2771528678 -39 52 58.958233537           ~ 1 0
67 TYC 7711-1449-1 * 10 07 10.0799417094 -40 28 16.724006882   11.24 10.79     ~ 2 0
68 CD-28 7935 * 10 08 33.5451117837 -29 35 57.549868515   11.10 10.60     ~ 1 0
69 TYC 245-630-1 * 10 13 50.8313966207 +01 59 28.231457498   12.05 11.87     ~ 6 0
70 HD 88855 PM* 10 14 45.1004284534 -07 13 33.555660338   10.241 9.931 9.39 9.28 F5/6V 11 0
71 TYC 7721-539-1 * 10 23 58.0359464798 -43 25 26.741063909   12.44 11.99     ~ 1 0
72 CD-29 8443 SB* 10 34 18.9045289406 -29 48 55.381768535   11.22 10.76 10.73   ~ 2 1
73 TYC 6637-975-1 SB* 10 37 06.9436956122 -25 34 17.723304408   10.655 10.16 9.83 9.705 ~ 10 0
74 EBLM J1037-45 Al* 10 37 27.4844825600 -45 21 48.164546511           ~ 1 0
75 EBLM J1038-37 Al* 10 38 24.4773628318 -37 50 17.988299171           ~ 5 0
76 TYC 7737-608-1 * 11 04 34.8873081947 -43 14 25.124382918   12.03 11.62     ~ 1 0
77 TYC 5507-1461-1 * 11 05 27.6704050406 -13 53 02.141678286   10.891 10.388 9.91 9.955 ~ 4 0
78 TYC 7206-1536-1 * 11 16 08.5551053694 -32 39 07.631794911   12.94 12.09     ~ 2 0
79 EBLM J1116-01 Al* 11 16 44.4208945468 -01 52 07.580211993           ~ 1 0
80 HD 101579 PM* 11 41 12.1882604764 -37 47 29.617138034   10.13 9.57     F7V 7 0
81 CD-41 6765 * 11 46 50.4896537462 -42 36 59.448592773   10.81 10.28     F5 3 0
82 TYC 7243-1498-1 * 12 01 46.8729921012 -36 26 48.961909092   11.40 10.81     ~ 2 0
83 HD 105495 * 12 08 41.3388994293 -29 39 46.793331211   10.51 10.09     F2V 3 0
84 CD-39 7570 EB* 12 19 21.0335517307 -39 51 25.582980593   11.10 10.32     K0V 13 0
85 TYC 7773-590-1 * 13 01 01.1829175350 -37 58 40.835188708   12.41 12.09     ~ 1 0
86 CD-30 10313 V* 13 05 05.7948150347 -31 26 12.196707638     9.8     ~ 4 0
87 HD 125622 * 14 20 47.4907034072 -07 36 33.506899630   10.22 9.74 9.46 9.436 F2V 10 0
88 EBLM J1431-11 Al* 14 31 52.1471061366 -11 18 40.438770685           ~ 4 0
89 TYC 7814-156-1 * 14 33 45.0304723192 -43 00 39.920585900   11.77 11.44     ~ 1 0
90 UCAC2 26899058 * 14 36 46.4121286568 -13 32 35.558792182   12.986 12.480 12.79 11.79 ~ 3 0
91 TYC 7315-1754-1 * 15 00 57.3772093109 -33 26 20.913411114   12.60 12.61     ~ 1 0
92 UCAC2 28031611 * 15 09 40.9477996169 -10 52 10.185124505   12.464 11.955 12.02 11.35 ~ 2 0
93 EBLM J1525-36 Al* 15 25 29.4628095032 -36 24 17.055905429           ~ 1 0
94 BD-05 4208 PM* 15 59 19.8688797892 -05 33 38.246532132   10.31 9.69     F5 11 0
95 TYC 964-1432-1 * 16 30 25.6459077377 +10 09 29.916666169   12.73 12.00     ~ 1 0
96 TYC 7931-842-1 PM* 19 28 58.8490067114 -38 08 27.228294091   12.11 11.20     ~ 1 0
97 UCAC2 13875304 * 19 34 25.6911246882 -42 23 11.979495819   13.38 12.62 12.57 11.82 ~ 1 0
98 NGC 6819 OpC 19 41 18 +40 11.2   8.21 7.3     ~ 473 0
99 EBLM J1944-20 Al* 19 44 00.1332183386 -20 51 05.002650588           ~ 1 0
100 HD 186753 EB* 19 47 10.7654414293 -23 22 52.094305897   9.08 8.80     A2(m)A5-F0 8 1
101 HD 190583 * 20 11 19.7353941919 -71 40 02.462407470   9.862 9.29     F6/7IV 4 0
102 TYC 8405-863-1 PM* 20 25 25.4802640577 -45 49 45.163090299   11.87 11.15     ~ 2 0
103 TYC 501-1138-1 SB* 20 27 38.7741564066 +03 14 26.578488559   11.93 11.46     ~ 2 0
104 TYC 7971-207-1 PM* 20 40 41.5649312378 -41 31 59.999076699   12.24 11.49     ~ 1 0
105 EBLM J2043-18 Al* 20 43 41.2661697302 -18 15 56.553378484           ~ 1 0
106 TYC 7967-574-1 PM* 20 46 38.0855281105 -40 32 19.240986825   12.27 11.49     ~ 2 0
107 TYC 524-2528-1 * 20 46 43.8759937703 +06 18 09.703351736   10.48 9.86     ~ 2 0
108 HD 199796 * 21 01 02.2476633058 -45 06 57.500807696   10.869 10.251     F6V 5 0
109 EBLM J2104-46 Al* 21 04 51.4801971103 -46 19 34.343163740           ~ 1 0
110 TYC 7969-518-1 * 21 07 11.0655890840 -39 45 58.763986359   12.50 12.03     ~ 1 0
111 CD-33 15536 * 21 22 57.8569798357 -32 29 17.110895189   11.24 10.62     ~ 1 0
112 EBLM J2153-55 Al* 21 53 16.5013985947 -55 59 07.366924908           ~ 1 0
113 CD-42 15773 PM* 22 07 28.1352767182 -41 48 55.688593628   10.90 10.39     ~ 3 0
114 HD 210330 * 22 10 48.7447398890 -48 53 26.331231113   9.27 8.77     F6V 6 0
115 TYC 5228-989-1 Al* 22 17 58.1308248645 -04 51 52.887582178   12.44 12.18     ~ 6 0
116 HD 213513 * 22 32 30.2911195685 -31 14 39.205349097   10.87 10.35     F3V 4 0
117 CD-37 14854 * 22 36 40.3162581900 -36 56 38.727146411   11.47 10.99     ~ 1 0
118 TRAPPIST-1 LM* 23 06 29.3684052886 -05 02 29.031690445     18.798 16.466 14.024 M7.5e 532 0
119 TYC 8448-418-1 * 23 08 45.6742586062 -46 06 36.721608609   11.73 11.35     ~ 5 0
120 EBLM J2330-61 Al* 23 30 35.0148705408 -61 58 27.786153345           ~ 1 0
121 TYC 7519-142-1 SB* 23 49 15.2395107281 -32 46 17.465477759   12.14 11.52     ~ 5 0
122 WASP-30 * 23 53 38.0550935909 -10 07 05.096758883   12.15 11.91 11.51 10.83 F8V 23 0
123 UCAC2 28124813 * 23 53 46.7353276743 -10 53 05.902065268   12.243 11.716 11.79 11.16 ~ 3 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2017A&A...608A.129T and select 'bookmark this link' or equivalent in the popup menu


2020.10.19-18:31:57

© Université de Strasbourg/CNRS

    • Contact